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Simulating Images of a Rising or Setting Sun

NASA’s Jet Propulsion Laboratory, Pasadena, California This software simulates Sun images observed on the ground and from space with an easy-to-use analytical approach and with high accuracy. It is a simple, analytical approach with the accuracy of a rigorous, multilayer model. The existing analytical approach cannot predict when the image of the Sun is blocked by the surface of the Earth, but the current approach can.

Posted in: Information Sciences, Electronics & Computers, Software, Briefs

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Partition Level Application Test for Orion (PLATO)

Lyndon B. Johnson Space Center, Houston, Texas For Orion Exploration Flight Test One (EFT-1), the unit-under-test for flight software verification has been chosen as the entire integrated flight software load. At the time of this reporting, the unit test tool, while powerful, operates on very small units, usually classes. This leaves a sizable gap between unit testing and verification. Orion flight software is divided into ARINC 653 partitions, and partition level testing is in this large gap.

Posted in: Information Sciences, Electronics & Computers, Software, Briefs

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Simulating Data Flow via Multiple Secure Connections

Goddard Space Flight Center, Greenbelt, Maryland A software simulator was developed to simulate data flow from the Interface Data Processing Segment (IDPS) to the Science Data Segment (SDS) for the NPOESS Preparatory Project (NPP) via multiple Secure FTP (sftp) connections. The simulator is a multi-threaded Java program that handles the continuous sftp transfer of large amounts of data with some error-handling capabilities built in.

Posted in: Software, Data Acquisition, Briefs

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Gridded Atmosphere Products from GPS Radio Occultation Measurements with Bayesian Interpolation Technique

NASA’s Jet Propulsion Laboratory, Pasadena, California GPS radio occultation measurements are vital for climate monitoring and atmospheric temperature change detection. However, the data are irregularly distributed in space and time, which makes it inconvenient for many applications.

Posted in: Test & Measurement, Software, Briefs, TSP

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Goddard Mission Services Evolution Center Compliance Test Suite

Goddard Space Flight Center, Greenbelt, Maryland To reduce the cost of building specialized interfaces, missions can adopt Goddard Mission Services Evolution Center (GMSEC) technologies and applications. Assurances need to be made that application implementation should follow the GMSEC messaging standards. The GMSEC Interface Specification Document (ISD) sets forth definitions for all GMSEC message types.

Posted in: Test & Measurement, Software, Briefs, TSP

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NASA Experiment Designer: A Tool for Running Scientific Workflows

The NASA Experiment Designer (NED) is a client-server application that enables end-to-end support for driving long-running scientific computer simulations such as climate and weather models. The tool provides a friendly, single point of entry for configuring parameters associated with the workflow for model experiments and related preprocessing/postprocessing tasks.

Posted in: Software, Briefs, TSP

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SensorWeb Campaign Manager API Client

This software was designed to automate delivery of tasking requests to a central queue, enabling integrated observation scenarios across multiple assets. It is a JAVA code application that enables machine-to-machine access between a client platform and the Campaign Manager application program interface (API) to post tasking requests for satellites that the Campaign Manager can access. The Campaign Manager tasks satellites via moderated tasking queue in which the operations team allows or denies requests.

Posted in: Software, Briefs

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